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A060451
as
a triangular array
1
3
2
7
4
3
15
5
5
4
31
9
6
6
5
63
13
7
7
7
6
127
19
11
8
8
8
7
255
A060451
as
a square array
1
3
7
15
31
63
127
255
2
4
5
9
13
19
3
5
6
7
11
4
6
7
8
5
7
8
6
8
7
A060451
as
an upper right triangle
1
3
7
15
31
63
127
255
2
4
5
9
13
19
3
5
6
7
11
4
6
7
8
5
7
8
6
8
7